m.tweedy Posted January 24, 2023 Share Posted January 24, 2023 Imaged with Atik 460 mono MN190 Astrodon 3Nm Ha 12 x 10 minutes and S11 18 x 10 minutes No O111 visible so just did Bi Colour. On CEM120. Bortle 8 There is a red dot that appears on all Ha subs that appears to be a small nebula embedded in it. Has anyone else seen it? 5 Link to comment Share on other sites More sharing options...
geeklee Posted January 25, 2023 Share Posted January 25, 2023 (edited) 10 hours ago, m.tweedy said: There is a red dot that appears on all Ha subs that appears to be a small nebula embedded in it. Has anyone else seen it? Definitely Michael - I've noticed it on a few images on Astrobin. I imaged this area in Ha recently, but only at 250mm focal length. Here's a crop of that region: This image - https://www.astrobin.com/full/os9l85/0/# - shows it very teal. A nice contrast. Edited January 25, 2023 by geeklee Link to comment Share on other sites More sharing options...
m.tweedy Posted January 25, 2023 Author Share Posted January 25, 2023 Thank you. I had never seen it before and at first thought it was a processing artifact. Then when we checked the Ha realised it was definitely Nebulous with what appears to be 3 stars embedded in it. Over the moon that I managed to capture it. 1 Link to comment Share on other sites More sharing options...
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